src/msw/main.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/main.cpp
   3 // Purpose:     WinMain/DllMain
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #include "wx/event.h"
  32 #include "wx/app.h"
  33 #include "wx/cmdline.h"
  34
  35 #include "wx/msw/private.h"
  36
  37 // Don't implement WinMain if we're building an MFC/wxWidgets hybrid app.
  38 #if wxUSE_MFC && !defined(NOMAIN)
  39     #define NOMAIN 1
  40 #endif
  41
  42 #ifdef __BORLANDC__
  43     // BC++ has to be special: its run-time expects the DLL entry point to be
  44     // named DllEntryPoint instead of the (more) standard DllMain
  45     #define DllMain DllEntryPoint
  46 #endif
  47
  48 #if defined(__WXMICROWIN__)
  49     #define HINSTANCE HANDLE
  50 #endif
  51
  52 #if wxUSE_GUI
  53
  54 // ============================================================================
  55 // implementation: various entry points
  56 // ============================================================================
  57
  58 // ----------------------------------------------------------------------------
  59 // Windows-specific wxEntry
  60 // ----------------------------------------------------------------------------
  61
  62 WXDLLEXPORT int wxEntry(HINSTANCE hInstance,
  63                         HINSTANCE WXUNUSED(hPrevInstance),
  64                         wxCmdLineArgType WXUNUSED(pCmdLine),
  65                         int nCmdShow)
  66 {
  67     // remember the parameters Windows gave us
  68     wxSetInstance(hInstance);
  69     wxApp::m_nCmdShow = nCmdShow;
  70
  71     // parse the command line: we can't use pCmdLine in Unicode build so it is
  72     // simpler to never use it at all (this also results in a more correct
  73     // argv[0])
  74
  75     // break the command line in words
  76     wxArrayString args;
  77     const wxChar *cmdLine = ::GetCommandLine();
  78     if ( cmdLine )
  79     {
  80         args = wxCmdLineParser::ConvertStringToArgs(cmdLine);
  81     }
  82
  83     int argc = args.GetCount();
  84
  85     // +1 here for the terminating NULL
  86     wxChar **argv = new wxChar *[argc + 1];
  87     for ( int i = 0; i < argc; i++ )
  88     {
  89         argv[i] = wxStrdup(args[i]);
  90     }
  91
  92     // argv[] must be NULL-terminated
  93     argv[argc] = NULL;
  94
  95     return wxEntry(argc, argv);
  96 }
  97
  98 // May wish not to have a DllMain or WinMain, e.g. if we're programming
  99 // a Netscape plugin or if we're writing a console application
 100 #if !defined(NOMAIN)
 101
 102 extern "C"
 103 {
 104
 105 // ----------------------------------------------------------------------------
 106 // WinMain
 107 // ----------------------------------------------------------------------------
 108
 109 // Note that WinMain is also defined in dummy.obj, which is linked to
 110 // an application that is using the DLL version of wxWidgets.
 111
 112 #if defined(_WINDLL)
 113
 114 // DLL entry point
 115
 116 BOOL WINAPI
 117 DllMain(HANDLE hModule, DWORD fdwReason, LPVOID WXUNUSED(lpReserved))
 118 {
 119     // Only call wxEntry if the application itself is part of the DLL.
 120     // If only the wxWidgets library is in the DLL, then the
 121     // initialisation will be called when the application implicitly
 122     // calls WinMain.
 123 #ifndef WXMAKINGDLL
 124     switch (fdwReason)
 125     {
 126         case DLL_PROCESS_ATTACH:
 127             return wxEntry(hModule);
 128
 129         case DLL_PROCESS_DETACH:
 130             wxEntryCleanup();
 131             break;
 132     }
 133 #else
 134         (void)hModule;
 135         (void)fdwReason;
 136 #endif // !WXMAKINGDLL
 137
 138     return TRUE;
 139 }
 140
 141 #endif // _WINDLL
 142
 143 } // extern "C"
 144
 145 #endif // !NOMAIN
 146
 147 #endif // wxUSE_GUI
 148
 149 // ----------------------------------------------------------------------------
 150 // global HINSTANCE
 151 // ----------------------------------------------------------------------------
 152
 153 #if wxUSE_BASE
 154
 155 HINSTANCE wxhInstance = 0;
 156
 157 HINSTANCE wxGetInstance()
 158 {
 159     return wxhInstance;
 160 }
 161
 162 void wxSetInstance(HINSTANCE hInst)
 163 {
 164     wxhInstance = hInst;
 165 }
 166
 167 #endif // wxUSE_BASE
 168